Some common pitfalls – VPC limitations
The VPC is one of the most critical components as this is the place where we start our AWS journey, and it is where we begin setting up our network before deploying other resources such as EC2. Before we start using it, there are some limits for VPC resources, but most of them are soft limits (unless indicated), and you should always contact AWS customer support to increase these resource limits. Some of these limits that you should be aware of are presented here:
- You can only have five VPCs per region. This is generally an AWS newbie error, initially in the Proof of Concept (POC) phase, when trying to create multiple VPCs in a region. The good news is this is a soft limit, and you can always contact AWS Support to increase this value.
- By default, you can have 200 subnets per VPC, but again this is a soft limit.
- By default, you can have five internet gateways and Network Address Translation (NAT) gateways per region, but...
